Ventilator



5. SLAVIN VENTILATOR Filed Jan. 10, 192

2 Sheets-Sheet 2 SAMUEL SLAVIN, OF ZDGBCHESTER, MASSACHUSETTS.

VENTILA'IOR.

Application filed January 10, 1924. Serial No. 685,406.

To all whom it may concern:

Be it known that 1, SAMUEL SLAVIN, a citizen of the United States, residing at Dorchester, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Ventilators, of which the following is a specification.

This invention relates to an improvement in ventilators for houses or other buildings, and has for its primary object to provide a device of this character wherein the same includes a head so mounted as to be freely rotatable by the action of the wind on the usual ventilator body or lower member as the same is termed in the art.

A further object of the invention is to provide a ventilator wherein the rotary head is formed with an outlet within which is disposed a plurality of relatively vertically slidable louvers or ventilating plates that are designed for manual operationwhereby the outlet of the air may be controlled at will.

With the foregoing and other objects in view as the nature of the invention will be better understood, the same comprises the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawings and claimed.

In the drawings wherein like reference characters indicate corresponding parts throughout the different views,

Figure 1 is a rear elevational View of a ventilator constructed in accordance with the present invention,

Figure 2 is a detailed vertical sectional view thereof,

Figure 3 is a detailed longitudinal cross section taken substantially upon the line 33 of Figure 2 and looking in a direction downwardly,

Figure 4: is an enlarged detail sectional view taken substantially upon the line L-4: of Figure 2, for more clearly disclosing the specific bearing construction employed in conjunction with the present invention,

Figure 5 is an enlarged fragmentary vertical sectional view taken through a portion of the rotary head of the ventilator for disclosing the position of the louvers or ventilating plates in their entire raised position, and

Figure 6 is an enlarged perspective of one of said louvers or ventilating plates.

Now having particular reference to the drawings, wherein there is disclosed the most practical embodiment of the invention, 5 designates the usual body of the ventilator or lower member which is of general cylindrical formation. This body member: is equipped at a point adjacent its, upper end with a pair of webs 6 that are formed centrally with registering rings or eyelets .7.

Positioned over this body member 5 of the ventilator is the usual rotary head 8 that consists of a sheet metal casing of substantially cylindrical form. This rotary head is designed for positioning over the upper end of said body'member 5 and its top inclined wall 9 is provided interiorallyv with a pendant substantially U-shaped bracket; 10,

the horizontal portion of which is formed with an opening for receivmg the upper end of arelatively elongated pendant tube 11. The end of this tube within said bracket 1s externally screw-threaded for the recep tion of a retaining plate or flange 12 for preventing the disengagement of said tube from the before mentioned bracket 10,

Ad acent the lower end of the rotary headv 8, said casing thereof carries a'web 13 that I is also formed centrally with a ring or eyelet through which loosely passes the tube 11, this tube extending downwardly through the rings or eyelets in the webs 6-6 of the body 5. Detachably carriedby the lower end of this tube 11 and upon opposite sides of the central ring or eyelet of the lowermost web 6 are retaining plates or flanges 14 which obviously limit any undue vertical thrust of the rotary head with respect'to the body of the ventilator.

Carried by the tube 11 at a point slightly beneath the before mentioned bracket 10, is a plate 15 between which and the horizontal portion of the bracket 10 is a suitable form of roller bearing 16 preferably of the type comprising a pair of spaced plates between which is a ball bearing carrying disk or plate as clearly shown in Figure 4L.

The rear side of the sheet metal casing guide ribs and at the upper end thereof is a stationary louver 20 that is formed at its lower edge with a rearwardly bent and slightly inclined lip 21. The louvers be tween said stationary one 20 and the lowermost louver 22 are formed upon their upper and lower edges with reversely bent inclined lips 23, Figure 6, for obviously co-operating with the lips of the adjacent louvers for preventing the total disengagement of the same with respect to each other. The lowermost louver 20 is formed atits lower edge with a forwardly extending relatively wide flange 24 that engages the lower edges of the re maining sliding l'ouvers for obviously drawing upwardly upon the same when said lowermost louver'is raised in a manner hereinafter more fully described.

Extending through the vertically disposed tube 11 is a chain 25 that passes downwardly through the body of the ventilator and terinmates at a convenient point within the building to which said ventilator is attached. Within the bracket 10 before described, is a pulley 26 over which passes said chain 25. This chain also passes over another pulley 27 that is carried by a hanger secured to the highest point of the inclined top wall 9 of the sheet metal" casing formingsaid' rotary head 10, said chain then extending downward'ly and-- being anchored at its opposite end to an eye on the lowermost louver or ventilating plate 22.

The rotary head 8 of said ventilator is provided with any desirable form of air vane 28', this head being further provided at vertical edges of said window openings with air pockets 29 for assisting said vane 28 in maintaining said window opening in the proper position with respect to the direction of travel of the wind.

From the foregoing it will at once be obvious that I have provided a highly efficient and practical form of ventilator and one wherein the rotary head thereof will always moved to the proper position by the action of the wind, and wherein the outlet opening of said head may be controlled within the building in a manner as above set forth.

I have shown in the drawings and set forth in the description the mostpractical embodiment of this invention with which I am at this time familiar, being nevertheless understood that minor changes may be made whenever desirable, without depai g from the spirit and scope of the appended claim.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1- A ventilator of the class described comprising a pair of telescopically connected relatively rotatable cylindrical sections, one of said sections being equipped in one side with an air discharge opening, a closure for said opening, said sections. being provided with internal spiders which are in turn pro vided with centrally disposed vertically aligned guide eyes, a tube extending through said eyes, the upper section being provided with an internally depending bracket having an opening through which the upper end oi the tube extends, spaced pairs of supporting shoulders secured to the upper and lower ends of said tube, the lower pair of shoulders cooperating with the lowermost guide eye, one of the upper pair of shoulders being engaged with said bracket, and antit'riction means interposed between the remaining shoulder and said bracket, guide rollers carried by said upper section, and an operating chain for the closure connected with the latter and passing over said guide rollers and downwardly through said tube.

In. testimony whereof I affix my signature.

SAMUEL SLAVIN.

all. (7 

